Abstract

In potato plants induced for systemic resistance by infiltration with Pseudomonas syringae pv. maculicola, 12-oxo-phytodienoic acid (OPDA) accumulated in infiltrated leaves as well as in non-treated leaves of infected plants. In contrast, jasmonic acid (JA) levels increased only in infiltrated leaves, suggesting that the biosynthetic precursor of JA, OPDA, might play a role in systemic acquired resistance.

Strömberg A (1995) Systemically induced resistance in potato cultivars with different degrees of resistance to late blight caused by Phytophthora infestans (Mont.) de Bary. Journal of Phytopathology 143: 27–31